Roll engine 5983e34a3c0e..fdfb0e72f0af (2 commits) (#26620)

https://github.com/flutter/engine/compare/5983e34a3c0e...fdfb0e72f0af

git log 5983e34a3c0e1217da7e8bbe9f2fe685048fe259..fdfb0e72f0af7b4de3f8cd04ca8519ba5acc12fe --no-merges --oneline
fdfb0e72f Roll src/third_party/skia cb7149e05864..98c65fc9558f (3 commits) (flutter/engine#7498)
5401803f6 Validate dynamic patches before attempting to install (flutter/engine#7496)

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bin/internal/engine.version

-5983e34a3c0e1217da7e8bbe9f2fe685048fe259
+fdfb0e72f0af7b4de3f8cd04ca8519ba5acc12fe